Measurement of Displacement and Displacement Gradient by Means of Phase-Shifting Image Plane Digital Holography

• SAKAUE Kenichi

  青山学院大学理工学部機械創造工学科

• OTAKI Hirotaka

  青山学院大学理工学部機械創造工学科

• TAKASHI Masahisa

  青山学院大学理工学部機械創造工学科

Bibliographic Information

Other Title

• 位相シフトイメージプレーンデジタルホログラフィによる変位・変位勾配の計測
• イソウ シフトイメージプレーンデジタルホログラフィ ニ ヨル ヘンイ ヘンイ コウバイ ノ ケイソク

Abstract

Phase-shifting image plane digital holography is applied to displacement measurement of a cantilever beam. A sin/cos average fiter is used to reduce the noise in a phase difference image and the phase unwrapping technique proposed by Herráezet al. is used. The experimental results show that the above techniques are useful for phase unwrapping of phase difference images with noise. Also, strain calculation method used in finite element method are adopted to evaluate displacement gradient from experimental displacement data.The results show that the method can evaluate displacement gradient with high accuracy.

Journal

• Journal of the Japanese Society for Experimental Mechanics

  Journal of the Japanese Society for Experimental Mechanics 6 (2), 163-168, 2006

  The Japanese Society for Experimental Mechanics

Keywords

• Phase-Shifting Digital Holography
• Displacement Measurement
• Strain Analysis
• Phase Unwrapping
• Noise Reduction

Details

• CRID: 1390001205188665856
• NII Article ID: 130004489888
• NII Article ID: 10018147220
• NII Book ID: AA11822914
• DOI: 10.11395/jjsem.6.163
• ISSN: 18844219
• ISSN: 13464930
• NDL BIB ID: 8017933
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8017933
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed